| layer at (0,0) size 800x600 | |
| RenderView at (0,0) size 800x600 | |
| layer at (0,0) size 800x100 isolatesBlending | |
| RenderBlock {HTML} at (0,0) size 800x100 | |
| RenderBody {BODY} at (8,20) size 784x60 [bgcolor=#0000FF] | |
| layer at (28,20) size 60x60 blendMode: difference | |
| RenderBlock {DIV} at (20,0) size 60x60 [bgcolor=#FF0000] |